Two coupled boxcars are rolling along at 2.5 m/s when they collide with and couple to a

Question:

Two coupled boxcars are rolling along at 2.5 m/s when they collide with and couple to a third, stationary boxcar.

a. What is the final speed of the three coupled boxcars?

b. What fraction of the cars' initial kinetic energy is trans- formed into thermal energy?

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For answer-question

College Physics A Strategic Approach

ISBN: 9780321595492

2nd Edition

Authors: Randall D. Knight, Brian Jones, Stuart Field

See More Books

Question Posted: Oct 29, 2023 12:23 AM

See More Questions

In Example 7.7, we calculated the final speed of a roller coaster that descended 20 m in height and had an initial speed of 5 m/s downhill. Suppose the roller coaster had had an initial speed of 5...
Can introverts become effective leaders? What additional traits do they need to develop in order to do so ? Explain.
Two air carts of mass m1 = 0.84 kg and m2 = 0.42 kg are placed on a frictionless track. Cart 1 is at rest initially, and has a spring bumper with a force constant of 690 N/m. Cart 2 has a flat metal...
Consider the following velocity distribution curves A and B. a. If the plots represent the velocity distribution of 1.0 L of He(g) at STP versus 1.0 L of Cl2(g) at STP, which plot corresponds to each...
Jim Sellers has been able to estimate his utility for a number of different values. He would like to use these utility values in making the decision in Problem 3-42: U ( $80,000) = 0, U ( $65,000) =...
An employer's contributions into a registered pension scheme during the year to 30 June 2017 are 600,000. Explain how tax r elief will be given on the contributions of 1,860,000 which the employer...
Mary Kay Morrow began working for Hallmark in 1982. At the beginning of 2002, Hallmark adopted the Hallmark Dispute Resolution Program, which required, among other things, that claims against the...
Memofax, Inc., produces memory enhancement kits for fax machines. Sales have been very erratic, with some months showing a profit and some months showing a loss. The companys contribution format...
a. Write a story problem for the expression 6 x b. Find the value of the expression. Show or explain your work. da f
How long will it take a rock dropped from 2.0 m above the surface of Mars to reach the ground?
In an amusement park water slide, people slide down an essentially frictionless tube. They drop 3.0 m and exit the slide, moving horizontally, 1.2 m above a swimming pool. What horizontal distance do...
Find two unit vectors orthogonal to both j - k and i + j.
Suppose a 500. mL flask is filled with 0.30 mol of OC12, 0.90 mol of BrOCl and 0.40 mol of BrCl. The following reaction becomes possible: Br(g) + OC1(g) BrOC1 (g) + BrC1 (g) The equilibrium constant...
2 Ti(s) + 3 1(s) --> 2 Til3(s). AHxn = -839 kJ What minimum grams of 12 (253.808 g/mol) is needed to heat 4.040 kg of water from 20.0 C to 80.0 C? The specific heat of water is 4.18 J/gC.
16) Which alcohol has a total of four beta hydrogens ( hydrogens)? A) OH B) C) OH D) X OH OH
Read the caliper and read the measurement to the significant figure 51 31 Auto
6. Would you expect the concentration of the solution to increase, decrease, or remain the same as the solution cooled and a solid formed? Explain.
Refer to the Auditing in Practice feature "Risks Associated with Sales Returns: The Case of Medicis and Ernst & Young." What problems can occur if controls related to sales returns and allowances are...
A certain Christmas tree ornament is a silver sphere having a diameter of 8.50 cm. Determine an object location for which the size of the reflected image is three-fourths the size of the object. Use...
Use Gausss law in integral form to show that an inverse distance field in spherical coordinates, D = Aa r /r , where A is a constant, requires every spherical shell of 1 m thickness to contain 4A...
A uniform volume charge density of 80 C/m 3 is present throughout the region 8 mm < r < 10 mm. Let = 0 for 0 < r < 8 mm. (a) Find the total charge inside the spherical surface r = 10 mm. (b) Find...
An infinitely long cylindrical dielectric of radius b contains charge within its volume of density v = a 2 , where a is a constant. Find the electric field strength, E, both inside and outside the...
ABC Insurance Company is a leading provider of property and casualty insurance. They are facing significant challenges in managing their risk exposures, particularly in relation to natural disasters...
During the audit process, auditors perform a thorough evaluation of fixed assets to determine if there are any indicators of impairment. This involves assessing factors such as changes in market...
Now assume Abdul came to the United States for five days in November of Year 2 . In Year 3 , he comes to the United States from April 1 through April 3 0 , and from June 1 through August 3 0 . Is...

Two coupled boxcars are rolling along at 2.5 m/s when they collide with and couple to a

Question:

Step by Step Answer:

To solve this problem you can apply the principles of conservation of momentum and conservation of k...View the full answer

College Physics A Strategic Approach

Students also viewed these Physics questions